Page 461 of 568

To minimize the possibility of catalyst damage:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idling or malfunctioning operating conditions.
Emission-Related Components
Positive Crankcase (PCV) Valve
Proper operation of the crankcase ventilation system
requires that the PCV valve be free of sticking or plug-
ging from deposits. Deposits can accumulate in the PCV
valve and passages with increasing mileage. Have the
PCV valve, hoses, and passages checked for proper
operation at the intervals specified. If the valve is
plugged or sticking, replace with a new valve—do not
attempt to clean the old PCV valve!Check the ventila-
tion hoses for indications of damage, weepage or plug-
ging with deposits. Replace if necessary.
Maintenance Free Battery
The top of the maintenance free battery is permanently
sealed. You will never have to add water, nor is periodic
maintenance required.
MAINTAINING YOUR VEHICLE 461
7
Page 494 of 568
Cavity Cartridge
FuseMini
FuseDescription
11 20 Amp
YellowIgnition Off Draw
(IOD)-Cabin Com-
partment Node
(CCN)/Radio/Under
Hood Lamp/Wireless
Control Module
(WCM)/Satellite Digi-
tal Audio Receiver
(SDARS)/Hands Free
Module (HFM)
12 30 Amp
PinkElectric Brake
13 25 Amp
NaturalPower-Battery
RWAL/ABS Module
Feed
14 15 Amp
BluePark Lamps LeftCavity Cartridge
FuseMini
FuseDescription
15 20 Amp
YellowTrailer Park Lamps
16 15 Amp
BluePark Lamps Right
17 15 Amp
BlueSpare
18 40 Amp
GreenABS Pump
19 30 Amp
PinkTrailer Tow
20 10 Amp
RedOccupant Restraints
Controller (ORC) 2
21 10 Amp
RedOccupant Restraints
Controller (ORC) Pre-
set Carrier
22 2 Amp
GrayIGN Switch Feed
494 MAINTAINING YOUR VEHICLE
Page 497 of 568

VEHICLE STORAGE
If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to mini-
mize the drain on your vehicle’s battery:
•Disconnect the Ignition-Off Draw fuse (I.O.D.) fuse
located in the Integrated Power Module, located in the
engine compartment. The I.O.D. cavity includes a
snap-in retainer that allows the fuse to be discon-
nected, without removing it from the fuse block.
•The electronic shift transfer case should be placed in
the 4HI mode and kept in this position to minimize the
battery drain.
•As an alternative to the above steps you may, discon-
nect the negative cables from both batteries.
•Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
insure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
NOTE:When reinstalling the IOD fuse push firmly until
fully seated, the gages in the Instrument Cluster will do
a full sweep, when the ignition key is cycled to RUN. This
is a normal condition.
MAINTAINING YOUR VEHICLE 497
7
Page 556 of 568

Voltmeter............................ 227
Gear Ranges........................307,314
General Information...................... 18
Glass Cleaning.......................... 491
Grocery Bag Retainer..................... 208
Gross Axle Weight Rating.................. 393
Gross Vehicle Weight Rating................ 392
GVWR............................... 389
Hands-Free Phone (UConnect™)............. 126
Hazard Warning Flasher................... 420
Head Restraints......................... 151
Headlights............................ 499
Cleaning............................ 490
High Beam........................... 170
High Beam/Low Beam Select Switch........ 170
Lights On Reminder.................... 168
Passing............................. 170
Switch.............................. 166Heated Mirrors......................124,209
Heated Seats........................... 161
Heater............................... 286
Heater, Engine Block..................... 306
High Beam/Low Beam Select (Dimmer) Switch . . 170
Hitches
Trailer Towing........................ 396
Hoisting.............................. 438
HomeLink(Garage Door Opener) Transmitter . . . 186
Hood Release.......................... 163
Hoses................................ 474
Hub Caps............................. 433
Ignition............................... 12
Cables (Spark Plug Wires)................ 458
Key ................................. 12
Wiring System (Spark Plug Wires).......... 458
Ignition Key Removal..................... 12
Illuminated Entry........................ 19
556 INDEX
Page 563 of 568

Selection of Coolant (Antifreeze)..........470,514
Sentry Key (Immobilizer)................... 15
Service Assistance....................... 542
Service Contract......................... 544
Service Manuals........................ 546
Setting the Clock.............236,240,248,262,275
Shift Speeds........................... 315
Shifting............................... 306
Automatic Transmission................. 307
Manual Transmission.................312,314
Transfer Case......................... 319
Transfer Case, Shifting into Transfer
Case Neutral (N).................. 411,413
Transfer Case, Shifting out of Transfer
Case Neutral (N)..................412,415
Shoulder Belt Upper Anchorage............42,81
Shoulder Belts.........................34,73
Side Airbag............................. 95
Signals, Turn........................... 169Sliding Rear Window
Power.............................. 209
Slippery Surfaces, Driving On............... 337
Snow Chains (Tire Chains)................. 375
Snow Plow............................ 406
Snow Tires............................ 377
Spare Tire..........................370,371
Spark Plug Wires (Ignition Cables/Wires)...... 458
Spark Plugs............................ 458
Speed Control (Cruise Control).............. 175
Speedometer........................... 228
Starting............................... 302
Automatic Transmission................. 302
Engine Fails to Start.................... 303
Manual Transmission................... 302
Remote.............................. 24
Starting Procedures (Gas Engines)............ 302
Steering
Linkage............................. 465
INDEX 563
10
Page 567 of 568
Windows.............................. 31
Power............................... 31
Rear Sliding.......................... 210
Windshield Defroster..................285,287
Windshield Washers................171,172,467
Fluid............................171,467
Windshield Wiper Blades.................. 467
Windshield Wipers....................... 171
Wiper Blade Replacement.................. 467
Wipers, Intermittent...................... 171
Wiring, Ignition (Spark Plug Wires)........... 458
INDEX 567
10